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What is resilient seated gate valve

Resilient Seated Gate Valve Material Specification
Item Material
Body           Cast Iron, EN1531 EN-GJL-250
Stem           Stainless Steel BS970 416 S21 
Wedge          Cast Iron, EPDM coated
Bonnet         Cast Iron DN1691 GG25
Handwheel      Ductile Iron GG40
 
Resilient Seated Gate Valve Pressure 
Max Working Pressure: 16 Bar
Shell Test Pressure: 24 Bar
 
Spindle’s gaskets O-ring - “DRY THREAD” - replaceable under pressure.
Stainless steel spindle with rolled thread and bearing.
Total sufrace rubbered wedge with replaceable spindle nut.
Gate valve with full bore.
All parts are protected against corrosion.
Resilient seated gate valve to EN 1074-1 and 2 / EN 1171, with WRAS approved EPDM
rubber parts.
Resilient Seated Gate Valve Body and bonnet of GJS-500-7 (GGG-50). Wedge of ductile iron with fixed wedge nut,
fully vulcanized with EPDM rubber. Stem of stainless steel min. 13% Cr with rolled thread and wedge stop ring.
Stem sealing with 4 O-rings in a nylon bearing, an EPDM rubber manchette, and a NBR
wiper ring. EPDM bonnet gasket in a groove, countersunk bonnet bolts encircled by the
bonnet gasket and sealed with hot melt. Sockets fitted with "Euro" sealing rings of EPDM
rubber.
 
Epoxy coating to DIN 30677-2 and GSK guidelines - internally and externally.

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